Walther LG400
- Category
- Rifle
- Barrel
- 420 mm
- Weight, empty
- 4.20 kg
- Introduced
- 2010
About
What it is, and why it matters
The Walther LG400 is a .177 (4.5mm) single-shot, pre-charged pneumatic (PCP) match air rifle introduced in 2010 as the successor to the Walther LG300. Designed for 10-metre Olympic and ISSF competition, it draws air from a removable compressed-air cylinder and is built around a highly adjustable aluminium stock with the trademark Walther recoil-absorber system. It is one of the most successful 10m target air rifles in international and Olympic competition.
The LG400 and its Walther LG-series predecessors have carried numerous shooters to Olympic and World Championship medals in 10-metre air rifle, making the Walther match-rifle line one of the dominant names in precision target air rifle competition.
Single-shot match rifle; pellets are loaded individually into the breech via a side-lever loading port. Offered in numerous stock configurations (Alutec, Anatomic, Blacktec, Universal, wood) and in 7.5-joule (ISSF match) and higher-energy field-target versions.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Carl Walther GmbH
- Category
- Rifle
- Country
- Germany
- Status
- In production
- Produced
- 2010
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 420 mm
- Overall length
- 1067 mm
- Sight radius
- 837 mm
- Weight, empty
- 4.20 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Bolt action
- Firing mechanism
- Fixed firing pin
- Trigger
- Two stage
- Trigger pull
- 0.6 N
- Capacity
- 1
- Magazine
- Internal
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum
- Barrel
- Steel
- Stock
- Aluminum
- Finish
- Anodized
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 170 m/s
- Muzzle energy
- 8 J
- Effective range
- 10 m
Trajectory
What the round does downrange
Solved from the muzzle figures and the bullet. The dashed rule is the effective range on the record, and the crosses are the steps the solver returned.
No load solved for this record yetThe flight path is computed from a cartridge and a bullet. This record has no ammunition filed against its chambering, so there is nothing to solve.
Features
What it has
What the record lists as fitted, drawn from the catalogue.
Pre charged pneumatic
Removable air cylinder- Absorber recoil compensation
Adjustable cheekpiece
Adjustable buttplate
Adjustable trigger- Balance weight system
Diopter sights
Standing
How it compares
Each figure against the firearms of the same type and cartridge that record it, or of the same type where that cartridge has too few. Positions are read to the nearest tenth.
| Measurement | This firearm | Median | Position |
|---|---|---|---|
| Empty weightAmong 52 .177 Air (4.5mm) rifles | 4.20 kg | 3.90 kg | Heavier than about 70% |
| Overall lengthAmong 52 .177 Air (4.5mm) rifles | 1067 mm | 1085 mm | Shorter than about 60% |
| Barrel lengthAmong 52 .177 Air (4.5mm) rifles | 420 mm | 428 mm | Shorter than about 70% |
| Magazine capacityAmong 52 .177 Air (4.5mm) rifles | 1 | 1 | Near the median |
Answers
Questions about the Walther LG400
How much does the Walther LG400 weigh?
The Walther LG400 weighs 4.20 kg (9.26 lb) empty.
What caliber is the Walther LG400?
The Walther LG400 is chambered in .177 Air (4.5mm).
How many rounds does the Walther LG400 hold?
The Walther LG400 holds 1 rounds, fed from an internal magazine.
How long is the Walther LG400?
The Walther LG400 is 1067 mm (42.0 in) long overall, with a 420 mm (16.5 in) barrel.
Who makes the Walther LG400?
The Walther LG400 is made by Carl Walther GmbH (Germany). It was designed by Carl Walther GmbH Sportwaffen.
When was the Walther LG400 introduced?
The Walther LG400 was introduced in 2010.
How does the Walther LG400 operate?
The Walther LG400 uses a bolt action, and its firing mechanism is fixed firing pin.
Compatibility
Which parts fit this firearm
Studio
Every part that mounts on this, resolved
Not a list the maker typed out: the answer comes from the mounts this firearm exposes and the interface each part needs, so it stays right when either one changes.
- Every part that mounts on any firearm in the catalogue
- Interface standards, platforms and fit overrides
- The same answers through the API and the MCP server
Requires a signed-in GunSpec account on the Studio plan. The answer is computed per part, so it is not part of the public record.
Provenance
What the record holds
Every figure above was taken from one of these pages. The confidence reflects how much of the record came from a page a claim can be checked against.
Provenance
Confidence in this record
78%
Stockists
Where to buy
Offers link straight to the shop. GunSpec never takes the order.
No shop has listed this firearm yet
Stock and prices come from the shops themselves. If you sell this firearm, you can list it and it appears here.
List a firearmMCP
Ask an assistant about it
The same record, reached the way a person asks for it rather than the way a program does.
Ask GunSpec
Works with
Point an MCP client at GunSpec and it answers from the catalogue rather than from memory. A free key covers the read tools.
API
The call that returns this record
The same fields, in the same units, from the same endpoint the page reads.
curl --request GET \ --url 'https://api.gunspec.io/v1/firearms/walther-lg400' \ --header 'X-API-Key: your_key'{ "id": "walther-lg400", "name": "Walther LG400", "manufacturer": { "id": "walther", "name": "Carl Walther GmbH", "countryCode": "DE", "foundedYear": 1886, "website": "https://www.carl-walther.de", "logoUrl": null, "description": "German manufacturer of sporting, competition, and defense firearms. Founded in 1886, Carl Walther is known for precision weapons technology.", "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-11 23:44:40", "updatedAt": "2026-02-18 03:40:48", "version": "d65d37557d49efec8a72ef6019ef9e5cab9430c505d88b909eaad72b3bf3cfb3" }, "category": { "id": "rifle", "name": "Rifle", "description": "Long-barreled firearms designed for accurate shooting" }, "country_of_origin": "DE", "year_introduced": 2010, "barrel_length_mm": 420, "weight_empty_g": 4200, "action_type": "bolt_action"}